The herbal heat/cold pack is a type of hot and cold therapy system designed to reduce spasm, increase blood flow, minimize swelling, minimize cramping, provide pain relief, and help with arthritis. Made of cotton material, this pack is reusable and can be microwaved for added heat therapy. It is ideal for storing in the freezer for cold therapy, and is manufactured in the United States. This product offers all natural and effective way to manage pain and inflammation with an amazing scent